Plexiglass (also called Lucite) because of its high optical transparency is used for making lenses. It is chemically________?
APolytetrafluroethylene (PTFE)
BPolycarbonates
CPhenolic resins
DPolymethyl methacrylate (PMMA)
Correct answer
D. Polymethyl methacrylate (PMMA)
Explanation
The correct answer is Polymethyl methacrylate (PMMA).